.w {
    width: 80%;
    max-width: 1360px;
    margin: 0 auto;
}
.text-l {
    font-size: 16px;
    line-height: 30px;
}
.text-xl {
    font-size: 24px;
    line-height: 30px;
}
.warpBox {
    background-repeat: repeat-y;
    background-size: 100%;
    background-image: url(../images/img/about_bg.png);
    padding-bottom: 14rem;
}
.content_1 {
    /* width: 100%; */
    padding: 2.8rem 1.8rem;
} 
.content_1>p:nth-of-type(1) {
    margin-bottom: 1px;
}
.content_2 {
    align-items: flex-end;
}
.content_2>div:nth-of-type(1) {
    width: 40%;
    /* flex: 4; */
}
.content_2>div:nth-of-type(2) {
    width: 60%;
    /* max-width: 775px;
    min-width: 550px; */
}
.content_2 img {
    width: 100%;
    height: 100%;
    display: block;
}
.content_2 ol {
    padding: 0;
    margin: 0;
}
.content_2 li {
    padding-left: 20px;
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    font-size: 16px;
    line-height: 36px;
    position: relative;
}
.content_2 li::after {
    overflow: hidden;
    position: absolute;
    content: '';
    width: 4px;
    height: 4px;
    top: 50%;
    margin-top: -2px;
    background-color: #000;
    border-radius: 50%;
    left: 5px;
}
@media (max-width:1450px) {
    .content_2 li {
        font-size: 14px;
        line-height: 30px;
    }.warpBox {
        padding-bottom: 200px;
    }
}
@media (max-width:1200px) {
    .content_2 li {
        font-size: 12px;
        line-height: 28px;
    }
    .warpBox {
        padding-bottom: 150px;
    }
}
@media (max-width:1100px) {
    .content_2>div:nth-of-type(1) {
        width: 100%;
        margin-bottom: 10px;
        /* flex: 4; */
    }
    .content_2>div:nth-of-type(2) {
        width: 100%;
        /* max-width: 775px;
        min-width: 550px; */
    }
    .content_2 {
        flex-direction: column;
        align-items: center;
    }
    .content_2 li {
        font-size: 16px;
        line-height: 36px;
    }
    .warpBox {
        padding-bottom: 50px;
    }
}
@media(max-width:900px) {
    .content_2 li {
        font-size: 14px;
        line-height: 30px;
    }
}